You may have no reason to reject such a handy accessory setto help free your hands effectively! Our J109 Headband Holder + Long Screw for GoPro Hero Series/SJ4000/SJ5000/Sports DV is designed for skiing， mountain biking， motocross， paddle sports or any activity where you want to get a perfect view of the action. With this headband holder pack， you can see more beautiful moments while biking or riding your motorcycle. And its excellent flexibility and adjustability allows you to wear it conveniently and comfortably. What’s more， it’s quite economic and cost-effective.Give it a try!                                    Features             Made of superior materials， durable for long time use<br> Adjustable strap， easy and comfortable to wear<br> Excellent flexibility and adjustability<br> Suitable for all the people crazy for extreme sports<br> Designed for skiing， mountain biking， motocross， paddle sports or any activity where you want to get a perfect view of the action<br> Provide you with more wonderful images and pictures <br>                                                            Specifications             Brand     JUSTONE    <br> Model     J109    <br> Quantity     1Piece    <br> Color     Black    <br> Material     ABS + Elastic Nylon    <br> Compatible Models     GoPro Hero 4， GoPro Hero 1， GoPro Hero 2， GoPro Hero 3， GoPro Hero 3+    <br> Retractable     Yes    <br> Screw Size     Gopro Adapter    <br> Max.Load     800G    <br> Adjustable Diameter Range     (5.12~7.09)" / (13~18)cm    <br> Circumference     23.62" / 60cm    <br> Dimensions     (7.87 x 7.87 x 5.91)" / (20 x 20 x 15)cm (L x W x H)    <br> Weight     2.68oz / 76g       <br>                                                             Package Includes            1 x Helmet Strap Mount<br>1 x Long Screw<br>